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"New" 289

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  • "New" 289

    I recently "discovered" the SDC Forum and have found some valuable information here. I have a couple of question about the 289 I have. We are currently restoring a 1961 Hawk, it has been in my wife's family since it was new and last year my wife and I decided to rescue it from the wheat fields of Montana. For some reason in 1970 the engine was removed from the car, tore down, cleaned and left in pieces in the shop and a new 289 short block was purchased and never installed. After going through the shop manual for information on the engine I noticed Studebaker had made a partial flow oiling system through 1961 and then changed to a full flow system in 1962. Question 1, what is the difference between full flow and partial flow? Question 2, How can you tell them a part? The reason for this question is I have the "new" short block still in it's original shipping crate and there is a tag in the bottom that says it was manufactured on Nov. 30, 1962. So. Question 3, Do you think this would be a full flow system? I appricate any help you can give. This is my first Stude and the more I work on this car the faster I am becoming a big Studebaker fan!

    61 Hawk (Project)

  • #2
    I know the changover occurred at some point in the '62 model year but the date you provide would be in the '63 model year, so it should be a full flow.

    Guido Salvage - "Where rust is beautiful"

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    • #3
      If there is a flat spot with a couple of tapped holes on the passenger side of the engine, towards the back corner, you have a full flow. That would be the place where the oil filter mount would go. Otherwise, you would have a partial flow. From the sound of it, you probably have a full flow.


      • #4
        As whacker says, there's a machined area at the right rear side of that block IF it's a Full-flo engine. Right beneath the deck of the block, below the rearmost cylinder on the passenger's side.
        There's two threaded holes that hold the filter mount to the block and a couple holes for the oil to flow in and out of. A Full-flo arrangement insures that ALL the oil the oil pump picks up from the pan is directed thru the filter before being distributed thru the oil galleries of the engine. A partial flow block uses a filter that bleeds off a portion of the oil from a tap point on one of the heads - runs the oil thru the filter and then dumps it back into the engine's sump. This filter usually mounts to the oil filler stanpipe that mounts to the upper front surface of the block.
        Most like the Full-flo system because it insures that any contaminants that might be loose in the engine will get caught by the filter before they can reach and damage any moving parts.
        BTW, SOME full-flo blocks were delivered with a little cast metal bypass plate over that full-flo mount pad. If this is the case, you simply remove it and install the filter base.

        Miscreant adrift in
        the BerStuda Triangle!!

        1957 Transtar 1/2ton
        1960 Larkvertible V8
        1958 Provincial wagon
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        • #5
          Thanks for the information! This is a full flow block, it has the cover over the opening in place. Now I will have to track down a filter bracket for this type of mount, I have the partial flow stand pipe and filter assembly.

          61 Hawk (Project)


          • #6
            quote:Originally posted by farmhawk

            Thanks for the information! This is a full flow block, it has the cover over the opening in place. Now I will have to track down a filter bracket for this type of mount, I have the partial flow stand pipe and filter assembly.

            61 Hawk (Project)
            Wayen, I would like to mention that either the full or partial filtration type block is a fine engine. I operate only "no-flow", (I don't even use the partial-flow filter system) and full flow Studebaker engines. The partial flow system is rather lame and not worth the extra plumbing and mess. As much as our cars get driven, (although I do drive mine as much as I can, including to/from work), if you change the oil at no more than 3000 miles, [u]religiously</u>, you'll never know the difference.

            Now, if you use Rotella diesel oil, you'll REALLY be doin' good!



            • #7
              The filter base for full flow V8's and full flow OHV 6's are the same
              as are the gasket and filter.

              59 Lark